DeviceApp

simple module

This module models the Device App entity as defined by the ETSI Multi-access Edge Computing (MEC) specifications. The Device App can be instantiated on a User Equipment (UE) that wants to dynamically instantiate a MEC application within a MEC system. It establishes a TCP connection with the User App Lifecycle Management Proxy (UALCMP) entity (see the UALCMP module) and, upon receiving a MEC application instantiation request from another UE application, it sends a message to the UALCMP including the URI of the MEC application to be instantiated. Once the confirmation of successful instantiation is received, the Device App sends an acknowledgment to the UE application that requested it. Moreover, this module is responsible for requesting the deletion of the MEC application from the MEC system upon explicit request from the UE application.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Parameters

Name	Type	Default value	Description
UALCMPAddress	string	""	UALCMP connect address to connect to, may be left empty ("")
UALCMPPort	int	-1	UALCMP port number to connect to
ualcmpLocalPort	int	8740	UALCMP local port number
appProvider	string	""
appPackageSource	string	""
localAddress	string	""	used local address for UE and UALCMP, may be left empty ("")
localPort	int	-1	UE port number to listen on
timeToLive	int	-1	if not -1, set the TTL (IPv4) or Hop Limit (IPv6) field of sent packets to this value
dscp	int	-1	if not -1, set the DSCP (IPv4/IPv6) field of sent packets to this value
tos	int	-1	if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

Properties

Name	Value	Description
display	i=block/app

Gates

Name	Direction	Size	Description
socketIn	input
socketOut	output

Source code

//
// This module models the Device App entity as defined by the ETSI Multi-access Edge Computing (MEC)
// specifications. The Device App can be instantiated on a User Equipment (UE) that wants to
// dynamically instantiate a MEC application within a MEC system. It establishes a TCP connection
// with the User App Lifecycle Management Proxy (UALCMP) entity (see the ~UALCMP module) and, upon
// receiving a MEC application instantiation request from another UE application, it sends a message
// to the UALCMP including the URI of the MEC application to be instantiated. Once the confirmation
// of successful instantiation is received, the Device App sends an acknowledgment to the UE
// application that requested it. Moreover,
// this module is responsible for requesting the deletion of the MEC application from the MEC system
// upon explicit request from the UE application.
//
simple DeviceApp like IApp
{
    string UALCMPAddress = default(""); // UALCMP connect address to connect to, may be left empty ("")
    int UALCMPPort = default(-1); // UALCMP port number to connect to
    int ualcmpLocalPort = default(8740); // UALCMP local port number

    string appProvider = default("");
    string appPackageSource = default("");

    string localAddress = default(""); // used local address for UE and UALCMP, may be left empty ("")
    int localPort = default(-1); // UE port number to listen on
    int timeToLive = default(-1); // if not -1, set the TTL (IPv4) or Hop Limit (IPv6) field of sent packets to this value
    int dscp = default(-1); // if not -1, set the DSCP (IPv4/IPv6) field of sent packets to this value
    int tos = default(-1); // if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value
    @display("i=block/app");

    gates:
        input socketIn @labels(TcpCommand/up);
        output socketOut @labels(TcpCommand/down);
}

File: src/apps/mec/DeviceApp/DeviceApp.ned